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The wording of this question does not make sense.Basically women menstruate every month (otherwise known as getting her period). This is bleeding from the vagina as a natural cleansing mechanism of the female anatomy. Sometimes, if women spend a great deal of time together, their monthly cyclewill occur sooner or later than usual until they occur at the same time. This is presumably a biological mechanism to make groups of women fertile at the same time.
Blame it on pheromones. Even if you're not conscious of it, they're working.
same as mine ... im also afraid but my doctor's said that it is conected to mY diet.. goodluck
Nope. :)
Women who live together tend to have their periods at the same time. It is believed that this is caused by the so called pheromones. Pheromones are chemicals that induce a certain behavior in members of the same species.
A pheromone is a secreted or excreted chemical factor that triggers a social response in members of the same species. Pheromones are chemicals capable of acting outside the body of the secreting individual to impact the behavior of the receiving individual. There are alarm pheromones, food trail pheromones, sex pheromones, and many others that affect behavior or physiology.
Pheromones are chemicals that are emitted/secreted by animals that trigger a social response in other animals of the same species. This is why they are "social hormones"- hormones affect behavior, and pheromones cause different social behaviors. There are many different types of pheromones, such as alarm pheromones (e.g. aphids release it when attacked by a predator and it causes them to fly away), food trail pheromones (e.g. ants lay a trail from the nest to where the food is), and sex pheromones (e.g. males secrete it which arouses females around them), among others. In all of these cases, some kind of social behavior is triggered by the releasing of the pheromones.
Some rough figures... 7,000,000,000 people on the planet = 3,500,000,000 women. 70% of those will be either pre-pubescent or post-menopausal. Leaving 1,050,000,000 possibilities. Divide that by the number of days in a year - and you get the averagefigure of 2,874,743
No. Before you menstruate you ovulate and you don't do that when you are pregnant.
A girl being to menstruate does not affect the age in which she is obligated to fast. It is a custom for children to practice fasting prior to the age (girls-12, boys-13)in which they are obligated to fast.
While there has been multiple reasonings for why menstrual synchrony, it's actually pretty unlikely that this phenomena exists at all. The research and methodologies used to prove the existence of menstrual synchrony have largely been rejected as flawed and inaccurate.
Pheromones are very important chemical messages that animals use to communicate to each other. Generally, pheromones tell animals of the same species a) the state of reproductive readiness (Male elk for example can tell if a female is ready to mate by smelling her urine to see if there are certain pheromones present indicating that she is ready) or b) the emotional state of the animal (sometimes fish release fear pheromones into the water to warn other fish of a predator) Pheromones are typically inhaled by animals, and the brain determines what the pheromone means. Even humans can interpret what a pheromone means, even though we are not really aware that we are smelling a pheromone.